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Overview
Comment:Make provisions in the code to support Provisions to support caching of serialized statements in the SSE extension. (CVS 3139)
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SHA1: 5048fae04227857c064c0ba48eb11bedeb467df0
User & Date: drh 2006-03-16 14:05:15.000
Context
2006-03-16
16:19
Fix some compiler warnings. (CVS 3140) (check-in: 6c5175bc0f user: drh tags: trunk)
14:05
Make provisions in the code to support Provisions to support caching of serialized statements in the SSE extension. (CVS 3139) (check-in: 5048fae042 user: drh tags: trunk)
2006-03-15
22:44
Performance improvement in sqlite3VdbeAddOp(). (CVS 3138) (check-in: 6bcbe8fcad user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/main.c.
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**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.337 2006/03/13 15:06:07 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/*
** The following constant value is used by the SQLITE_BIGENDIAN and








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**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.338 2006/03/16 14:05:15 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/*
** The following constant value is used by the SQLITE_BIGENDIAN and
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    return SQLITE_OK;
  }
  if( sqlite3SafetyCheck(db) ){
    return SQLITE_MISUSE;
  }

#ifdef SQLITE_SSE
  sqlite3_finalize(db->pFetch);
#endif 

  /* If there are any outstanding VMs, return SQLITE_BUSY. */
  if( db->pVdbe ){
    sqlite3Error(db, SQLITE_BUSY, 
        "Unable to close due to unfinalised statements");
    return SQLITE_BUSY;








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    return SQLITE_OK;
  }
  if( sqlite3SafetyCheck(db) ){
    return SQLITE_MISUSE;
  }

#ifdef SQLITE_SSE
  sqlite3SseCleanup(db);
#endif 

  /* If there are any outstanding VMs, return SQLITE_BUSY. */
  if( db->pVdbe ){
    sqlite3Error(db, SQLITE_BUSY, 
        "Unable to close due to unfinalised statements");
    return SQLITE_BUSY;
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Changes to src/vdbeInt.h.
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  u8 explain;             /* True if EXPLAIN present on SQL command */
  u8 changeCntOn;         /* True to update the change-counter */
  u8 aborted;             /* True if ROLLBACK in another VM causes an abort */
  u8 expired;             /* True if the VM needs to be recompiled */
  u8 minWriteFileFormat;  /* Minimum file format for writable database files */
  int nChange;            /* Number of db changes made since last reset */
  i64 startTime;          /* Time when query started - used for profiling */




};

/*
** The following are allowed values for Vdbe.magic
*/
#define VDBE_MAGIC_INIT     0x26bceaa5    /* Building a VDBE program */
#define VDBE_MAGIC_RUN      0xbdf20da3    /* VDBE is ready to execute */








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  u8 explain;             /* True if EXPLAIN present on SQL command */
  u8 changeCntOn;         /* True to update the change-counter */
  u8 aborted;             /* True if ROLLBACK in another VM causes an abort */
  u8 expired;             /* True if the VM needs to be recompiled */
  u8 minWriteFileFormat;  /* Minimum file format for writable database files */
  int nChange;            /* Number of db changes made since last reset */
  i64 startTime;          /* Time when query started - used for profiling */
#ifdef SQLITE_SSE
  int fetchId;          /* Statement number used by sqlite3_fetch_statement */
  int lru;              /* Counter used for LRU cache replacement */
#endif
};

/*
** The following are allowed values for Vdbe.magic
*/
#define VDBE_MAGIC_INIT     0x26bceaa5    /* Building a VDBE program */
#define VDBE_MAGIC_RUN      0xbdf20da3    /* VDBE is ready to execute */
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